Thrust disc is made of steel and thrust bearing bushing surface is made of plasticbushing.
推力盘为钢制材料制成，推力轴承瓦面为塑料瓦材料制成。
2
The basic units of post seal structures were sorted into adhesive, rubber, lead bushing, plastic cover and lead post pillar, and each se aling unit was analyzed.
研究了把密封结构基本单元归结为胶粘剂、橡胶、铅套和塑料电池盖、极柱等，并分别做了简要分析；
3
A plurality of recesses are formed on the outer circumference of the magnet; the magnet and the bushing are integrated by one-shot plastic forming, and the bushing is of plastic.